Parts of I-35 in Texas are toll roads, but the majority of the route is free.

How long is the drive from Johnston to Dallas?

It is approximately 12 hours of driving time.

What is the best time to drive to Dallas?

Early morning departures help avoid traffic in major cities like Kansas City.

Are there direct flights to Dallas?

Yes, American Airlines offers direct flights from DSM to DFW.

What is the weather like in Dallas?

Dallas has hot, humid summers and mild winters.

Johnston

Dallas

Driving

Johnston to Dallas

Updated: 30 May 2026

The drive from Johnston to Dallas is a straightforward 750-mile journey primarily using Interstate 35. You will pass through Kansas City and Oklahoma City. The drive typically takes 12 hours of pure transit time. It is a popular route for those moving or visiting family in the South. Expect varied terrain from Iowa cornfields to the Texas plains.

Total Distance: Driving distance 1,200 km, Air distance 1,050 km.

Fastest Way

Driving takes 12 hours; flying from DSM to DFW takes 4 hours total.

Cheapest Way

Driving your own vehicle is the most cost-effective for groups.

Compare Johnston to Dallas Routes

Driving

Direct

Duration

12 hours

Avg Price

$150 in fuel

Operator

Personal Vehicle

Route

I-35 S through Kansas City and Oklahoma City

Stop in Oklahoma City for a break; it is roughly the halfway point.

Travel Tips

Tolls
Be prepared for toll roads in the Dallas-Fort Worth area; use a TollTag.
Traffic
Avoid I-35 during rush hour in Dallas, as congestion is significant.
Weather
Check for severe thunderstorms in the spring, which are common in the Midwest and Plains.
Dining
Try authentic Texas BBQ while in Dallas; it is a local staple.
Parking
Use parking apps to find affordable garages in downtown Dallas.

Safety Tips

Fatigue
Take breaks every 3 hours to avoid driver fatigue on long stretches of I-35.
Vehicle Check
Check tire pressure and fluid levels before leaving Iowa.
Emergency
Keep a roadside emergency kit in your trunk at all times.
Weather Alerts
Monitor local radio stations for tornado warnings during the spring season.